Pump.



G. C. HICKS, JR.

PUMP..

APPLICATION FILED FEB. 7, I917 Patented Oct. 2,1917.

2 SHEETS-SHEET l Qw/ye C. Hicks (/11 Inventor Attorney Witness:

G. C. HICKS, IR.

PUMP, v APPLICATION FILED FEB- 7, 19"- Patented Oct. 2, 1917.

2 SHEETb-SHEET 2 III q Ti George 6 Hit/gs Jn Inventor S s e n H w w. 5 at Attorney GEORGE C. HICKS, J'B., OF CONNERSVILLE, INDIANA,

PUMPJ- Specification of Letters Patent.

Patented Oct. 2, 19117. I

iApplieation filed February 7, 1917. Ser1'a11\To. 147,051.

To all whom it may concern:

Be it known that I, GEORGE C'. HICKS, Jr., a citizen of the United States, residing at Gonnersville, Fayette county, Indiana, have invented certain new and useful Improve ments in Pumps, of which the following is a specification.

This invention, relating to improvements in pumps of the rotary impeller type, will be readily understood from the following description taken in connection with the accompanying drawings in which Figure 1 is a demonstrative diagram:

Fig. 2 a vertical section of a pump exem plifying my invention, the section being in the plane of line 0 ofFig. 3 z

Fig. 3 a front elevation of the pump,parts appearing in vertical section in the plane of line d of Fig. 21'

Fig. 4c a side elevation of the extra elliptical body for controlling the movement of the oscillating abutment; and Fig; 5 a vertical section illustrating a simplified modification of structure.

In the drawings, giving consideration for the present entirely to Fig;

p 1, indicates an elliptical disk: I

2, apair of rigidly unified arms having surfaces at right angles to each other and tangential to two points on the periphery of the ellipse:

3, a center on which the pair of arms may oscillate:

4, a circle concentric with the geometrical 'center of the ellipse and having a radius equal to the distance from that center to the center of oscillation 3 of the armszand 5, the geometrical center of the ellipse.

If the ellipse be stationary and the pair of arms be carried about the ellipse in the circle 4: and the pair of arms be free to oscillate onthe center 3 then the arms will be at all times tangential to two points on the periphery of the ellipse. Conversely, if the center of oscillation 3 be in fixed position and'the ellipse be rotated upon its center 5, the two arms will. be at all times tangential to two oints on the erinhery of the ellipse.

Proceeding with the drawings 6, indicates a pump casing:

7, an inlet thereto for the fluid or liquid to be pumped:

8, the outlet from the casing:

9, a shaft mounted for rotation in the casing and adapted to have power applied to it: i

10, an elliptical impeller fast on; this shaft: v p

11, a segmental bore in the casing concentric with the shaft 9 and adapted to be swept by the major extremities of the ellipse, this segmental "bore'com'prehending at least a'semi-circlei I 12, a port placing the interior .of the bore 11 in communication with the outlet '8 of the casing:

18, an outwardly opening check-valve closing thisport: v

14;, a shaft mounted in the casing parallel with shaft 9 opposite the segmental bore 11 and sufficiently far from shaft 9 to be freely cleared by the major extremities of the ellipse as the ellipse rotates, this shaft forming a pivot of oscillation for a two armed oscillating abutment:

15, an abutment mounted for oscillation with shaft 14 as a pivot, this abutment being formed with two rigidly united arms having straight surfaces atright angles to each other and tangential tothe periphery of theimpeller 10: 1 v r 16, the extremities of-the arms of the abutment, the same being formed oncircuf lar arcs struck from the center of shaft lit: 17 ,convex surfaces formed in thecasing and adapted to be swept by the extremities of the abutment as the abutment oscillates: 18, the inlet chamber of the casing, formed between the abutment and the casing inlet 7 and i 19, the casing chamber formed by bore 11 and swept through by the impeller.

The side Walls of the casing are in running contact with the sides of the impeller and abutment, as is usual in pumps of the impeller type, and as the impeller rotates it constantly maintains contact with both arms of the abutment, one or extremity of the impeller being always in contact with bore 11 and acting to compress the fluid or liquid being dealt with and to bring about its discharge from the casing, check-valve 13 preventing regurgitation, and the extremities of the arms of the abutment maintaining contact with the casing, all in an 0bvious manner. I

The term contact? has been used above but it is to be understood that it would be highly desirable if there were no such con i of the impeller 1' ness of fit between the running surfaces is v to be as free as is consistentwith the nature of the material being pumped, and the lubrication of the'rubbing surfaces should be considered. If the pump be used as an oil" ump-'- then, .oflcourse, the. pump will be' selflubricating. And, similarly, but to a lesser degree, if other liquids be dealt with. If the'pump isito deal with a fluid, as air, I provide for lubrication of the pump parts by means of water I v V Proceeding with the drawings:-

20, indicatesa port placing inlet-chamber 18 in communication \vith impeller-chamber 19 and located above pivot-shaft 1 1:

,21, ports extendingthroughthe arms of the abutment at their inner portions where the arms are not engaged by the periphery I 22, a" chamber peller-chamber and the casing-outlet and lower than-port 12:

-23;,a .w.ater-inlet to inlet-chamber 1S:

24, water-outlet from chamber 22 and 25, a line indicating a general level of assume the pump to handling air. is subject to the splashing effect of the oscillatingabutment. The water lubricates the surfaces l6 17 at the extremities of the abutment, any water leakage past these surwater in inlet-chamber 18.

faees going to the impeller-chamber 19, the

water at the same time going through open ings '21 and serving to lubricate therunn'ing surfaces between the impeller and the arms of the abutment, the'runningofjthe major extremitiesof the ellipse againstborell 'beinglubricated by the water which leak's down pas'tthe extremities of the abutment and the water which has come down into the? impeller-chamber through ports 21. The water passes out with the air through port 12 and becomes trapped in chamber 22 from.wh1ch it may be withdrawn through water-outlet 24:, whieh shouldbe under valvular control.

. Itis. highly ripheryof the ellipse and the working faces of the arms of the abutmentbut' that the'fitting of these parts to each, other should be maintained withjsatisfactory closeness. In the description {thus far given the oscillations of the abutment have been brought about by the action of the impeller upon the armsof the abutment. In order toavoid vrubbingcontactbetween theseparts. I provide eziterlor mechanism for oscillating the disposed between the imbe in motion and The water in inlet-chamber 18- desirable'that theresh'ouldbe llOiLCjlZlliLl rubbing contact between the pe- 27, a prolongationof the impeller-shaft, I

this prolongation being j'ournaled in the housing:

28, a prolongation of shaft 14 forming the pivot-shaft of the abutment, the abutment being fast on its pivot, and the prolongation within the oil-tank, and having two arms. I

with faces at right angles to eachother and engaging the peripheryof the cam in the same manner that the arms of the abutment engage the ;)eriphery of the impeller;

32, adjustable shoes, of any'suitable char acter, forming the functional faces of the arms'of'fork 31: and.

83,, oil-inlets to the upperbearings' in the housings. f Y f Cam .30 and the arms of thefork have precis'ely the relationship .to each otherthat the impeller and the arms of the abutment have to each other, but the arms of the fork are n actual rubbing contact with the periphery of the cairnl It follows that as-jth-e lower shaft is rota'ted, the abutmentis forced to by the impellerand that thereQis therefore no need of any such .rubbing contact be take on its proper oscillations uninfluencedi tween the impeller and the arms of the abutment as would, produce disturbing wear. The, wear ofthe arms of thefork and of the peripheryv ofth'e cam may be compensated for by adjusting the shoes of the fork.

Oil carried in the oil-tank willv serve in maintaining a constant satisfactory lubrication of the cam and the arms of the fork. It isipreferred that oil be supplied to the upper bearings of the housing through oil inlets 83, the oil serving to lubricate the'upper bearings in the housing and flowing thence, through suitable channels, to thelower. bearings, and. flowing thenceinto the oil-tank where it is splashed into by the cam.

The modification" illustrated in Fig. '5 will be self-explaining, the abutment and the bore in which it oscillateshaving their arcs or surface so extended that the abutment forms its own axis ofoscillation thus avoid a ing the necessity for the employment of a pivot-shaft for the support of the abut ment. V

1, A pump comprising,la casingprovided with an inlet and an outlet'and with an im- .ieller-chamber having a segmentalbore, an impeller-shaft journal'ed in the casing 011- centric with said bore, an elliptical impeller carried by said shaft and adapted to have its major extremities sweep said bore, a pivot carried by the casing parallel with the impeller-shaft between the impeller and the casing-inlet, an abutment mounted for oscillation on said pivot as anaxis and having a pair of arms provided with faces at right angles to each other and tangential to the periphery of tne impeller, said oscillating abutment separating the impeller-chamber from the casing-inlet, and means for maintaining the ends of the arms of the abutment in runningrelationship with the casing as the abutment oscillates, combined substantially as set forth.

2. A pump comprising, a casing provided with an inlet and an outlet and with an impeller-chamber having a segmental bore, an impeller-shaft journaled in the casing concentric with said bore, an elliptical impeller carried by said shaft and adapted to have its major extremities sweep said bore, a pivot carried by the casing parallel with the in'ipeller-shaft between the impeller and the casing-inlet, an abutment mounted for oscillation on said pivot as an axis and having a pair of arms provided with faces at right angles to each other and tangential to the periphery of the impeller and having their extremities formed in circular arcs concentric with said pivot, said oscillating abutment separating the impeller-chamber from the casing-inlet, and pair of concave surfaces carried by the casing concentric with said pivot and adapted to be swept by the extremities of the arms of the abutment, combined substantially as set forth.

3. A pump comprising, a casing provided with an inlet and inlet-chamber and an outlet and with an impeller-chamber having a segmental bore, an impeller-shaft journaled in the casing concentric with said bore, an. elliptical impeller carried by said shaft and adapted to have its major extremities sweep said bore, a pivot carried by the easing parallel with and above the impellershaft between the impeller and the casinginlet, an abutment mounted for oscillation on said pivot as an axis and having a pair of arms provided with faces at right angles to each other and tangential to the periphcry of the impeller, said oscillating abutment separating the impeller-chamber from the casing-inlet, means for maintaining theends of the arms of the abutment in running relationship with the casing as the abutment oscillates, and means forpermitting water supplied to the inlet-chamber to go therefrom past the extremities of the arms of the abutment and to and out of the impeller-chamber, combined substantially as set forth.

i. A pump comprising, a casing provided with an inlet and inlet-chamber and an out let and with an impeller-chamber having a segmental bore, an impeller-shaft j ournaled in the casing concentric with said bore, an elliptical impeller carried by said shaft and adapted to have its major extremities sweep said bore, a pivot carried by the casing parallel with and above the impeller-shaft between the impeller and the casing-inlet, an abutment mounted for oscillation on said pivot as an axis and having a pair of arms provided with faces at right angles to each other and tangential to the periphery of the impeller, said oscillating abutment separating the impeller-chamber from the easing-inlet and having ports through its arms placing the inlet-chamber and the impellerchamber in communication with each other, means for maintaining the ends of the arms of the abutment in running relationship with the casing as the abutment oscillates, and means for permitting water supplied to the inletchamber to go therefrom past the extremities of the arms of the abutment and to and out of the impeller-chamber combined substantially as set forth.

5. A pump comprising, a casing provided with an inlet and inlet-chamber and an outlet and with an impeller-chamber having a segmentalbore, an impeller-shaft journaled in the casing concentric with said bore, an elliptical impeller carried by said shaft and adapted to haveits major extremities sweep said bore, a pivot carried by the casing parallel with and above the impeller-shaft between the impeller and the casing-inlet, an abutment mounted for oscillation on said pivotas an axis and having a pair of arms provided with faces at right angles to each other and tangential tothe periphery of the impeller, said oscillating abutment separating the impeller-chamber from the casing-inlet and having ports through its arms placing the inlet-chamber and theimpellerchamber in communication with each other, means for maintaining the ends of the arms of the abutment in running relationship with the casing as the abutment oscillates, and means for permitting water supplied to the inlet-chamber to go therefrom past the extremities of the arms of the abutment and to and out of the impeller-chamber, said casing being provided with a chamber provided with an outlet and disposed between the impeller-chamber and the casing-outlet and below the latter, combined substantially as set forth.

6. A pump comprising, a casing provided with an inlet and an outlet and with an impeller-chamber having a segmental bore, an impeller'shaft journaled in the casing concentric with said bore, an elliptical impeller carried by said shaft and adapted to have its major extremities sweep said bore, an abut ment-shaft carried by the casing parallel with the impeller-shaft between the impeller and' the-casing-i11let,- an abutment fast on the ahutmeneshaft and having a pair of arms providedwith faces at right angles to each other and-tangential to the periphery ofthe' impeller," said oscillating abutment separating the impeller-chamber from the casinginlet, means for-maintaining the ends of the arms of the abutment in running relationship with' the casing: as the abutment oscillates, prolongations of the abutment-shaft and impeller-shaft, an elliptical cam fast on the prolongation of the impeller-shaft, and" a fork fast on the prolongation of the abutment-shaft-and' having: a pair ofarms provided with faces at right angles to each other and tangential to the periphery ofthe' cam, combined substantially asset forth.

7. A pump comprising, a casing provided with aninlet-"andan outlet and with an impeller chamber having a segmental bore, an impeller shaft'jburnaled in the casing concentric with said bore, 'anelliptical impeller carried by said shaft and adapted to" have its major extremities sweep said bore, an abutment-shaftcarried by the casing paral'-' lel witlrthe impeller-shaft between the impeller and the casing-inlet," an abutment fast on' the abutment-shaftand having a pair of arms provided with facesat right angles to each other and tangential to the periphery of the impeller, said oscillating abutment separating the impeller-chamber from the casmg-inletymezinsfOr maintaining the ends of thejarm'sof the abutment in running relationship with the casing as the abutment oscillates, prolongations' of the abutment shaft and impeller-shaft, an elliptical cam fast on" the prolongations of the" impellershaft, a fork fast on the prolongation of theabutment-shaft and -having'a pair of arms provided with faces at right angles to each other and tangential to the periphery of the cam, andadjustable shoes on the faces of the arms-ofthe'fork, combined substantially as set forth;

S. A pumpcomprising, a casingv provided with an inlet" and an outlet andwith animpeller-chamber having a: segmental bore,

a1rimpeller-shaft journaled in the casingf'concentrlo with said bore, an elliptical 1mpellercarried-by said shaft andadapted' to have its-major extremities sweep said bore, anabutment-shaft'carried by the casing parallel with the impellerrshaft between the impeller andthe casing-inlet,:an' abutment fast on the abutment-shaft and having a pair of arms provided with faces at right angles to each other and-tangential to the periph-' ery of the impeller, said oscillating abutment-separatingthe impeller-chamber from the casing-inlet, -means for maintaining the ends of the arms of the abutment in running relations-hip with'the casing as the abutment oscillates, prolongations of the abutment-- shaft and impeller-shaft, an elliptical camfast on the' prolongations of the impellershaft, a' fork fast on the prolongation of the abutmentshaft and having a pair of arms provided with faces at right angles to each other and tangential to the periphery of the cam, and an oil-tank having a portion disposed below said cam and adapted to contain oil to be splashed into by the cam, combined substantially as set forth;

9. A pump comprising, a casing provided with an inlet and an outlet and with an impeller-chamber having a segmental bore, an impeller-shaft journaled in the casing concentric with said bore, an elliptical impeller carried by said shaft and adapted to have its major extremities sweep said bore, an abutment-shaft carried by the casing parallel with the impeller-shaft between the impeller and the casing-inlet, an abutment fast on; the abutment-shaftand having a pair of arms provided with faces at right angles to each other and tangential to the periphery of the impeller, saidoscillating abutment separating the impeller-chamber from the casing-inlet,' means for maintaining the ends of the arms of the abutment in running relationship with the casing as the abutment oscillates, prolongations' of the abutment-shaft and impeller-shaft, an elliptical cam fast on the prolongations of the impeller-shaft, a fork fast on the prolongation of the abutment-shaft and having a pair of arms" provided with faces at right angles to each other and tangential to the periphery of the cam, ahousing having. a pair of side members carrying'bearings for the prolongations of the shafts and disposed axially at the sides of the cam and fork, and an oiltank inclosing the space betweeri the sidemembers' of the housing and inclosing said fork and cam, combined substantially asset forth; v V I 10. A-pump comprising, a oasingprovided with an inlet and an outletand with an impeller-chamber having a segmental bore, an impeller-shaft journaled in the casing concentric with saidbore, an elliptical impeller carried by'said shaft and adapted to have its major extremities sweep said bore, anabutment-shaft carried by the casing parallel with the impeller-shaft between'the impeller and the casing-inlet'an abutment fast on theabu'tment-shaft and having a" pair of arms provided with faces at right" angles to each other and tangential to the periphery of the impeller, said oscillating abutment separating" the impeller-chamber from the 'casin inlet means for maintainin 'the ends of-the 'arms'of the abutment in running relationship with the casing as-the abutment os-' cillates, prolongations of the abutment-shaft and impeller-shaft, an elliptical cam fast on the prolongations of the impeller-shaft, a fork fast on the prolongation of the abutment-shaft and having a'pai'r' ofarms' pro'- vided with faces at rightangles to each other and tangential to the periphery of the earn,

a housing having a pair of side members carrying bearings for the prolongations of the shafts and disposed axially at the sides of the cam and fork, an oil-tank inclosing the space between the side-members of the housing and inclosing said fork and cam, and oil-passages placing the shaft-bearings in the housing in communication with the oil-tank, combined substantially as set forth.

11. A pump comprising, a casing provided with an inlet and an outlet and with an impeller-chamber having a segmental bore, an impeller-shaft journaled in the casing concentric with said bore, an elliptical impeller carried by said shaft and adapted to have its major extremities sweep said bore,

anabutment mounted for oscillation within 1 the casing on an axis parallel with said shaft and provided with radial faces at right angles to each other and tangential to the periphery of the impeller and provided with a concentric peripheral surface, and a,

concave surface carried by the casing concentric with the axis of the abutment and cooperating with the periphery of the abutment, combined substantially as set forth. GEORGE G. HICKS, JR.

Witnesses: 1

' ROBERT H. SAYER,

W. G. BARNES.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. G. 

